/*
 * Copyright 2000-2007 JetBrains s.r.o.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.codeInsight.dataflow.map;

import com.intellij.codeInsight.dataflow.Semilattice;

public interface MapSemilattice<E> extends Semilattice<DFAMap<E>>{
  // Invariant: join can return unmodified ins(0) or empty DFAMap
  // DfaInstance must create new one before modifying
}